Bottom supply and spray tube for domestic boilers



DEC. 27, w SILTZ 1,892,320

BOTTOM SUPPLY AND SPRAY TUBE FOR DOMESTIC BOILERS Filed May 25, 1931 Patented Dec. 27, 1932 UNETEE) STATES insane GEORGE W. SILTZ, OF PORT CHESTEIU, HEW YORK Application filed May 23,

This invention relates to a water supply tube for domestic boilers, and has for one of its objects to provide a device of this character through the medium of which water may be supplied to the bottom of a domestic boiler to the end that both spuds at the top of the boiler may be used as hot water outlets, and which shall be adapted to spray the water in a horizontal direction into the boiler to the end that rust and foreign matter in the water may not settle on the bottom of the boiler.

The invention has for a further object to provide a water supply tube of the character stated which shall embody three separate taps, one for the Water supply pipe, another for a draw-off faucet and the remaining one for a gas heater coil or water back connection.

Vith the foregoing and other objects in view, the nature of which will appear as the description proceeds, the invention consists in the construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawing, wherein Figure 1 is a view partly in vertical section and partly in elevation illustrating the water supply tube applied to a domestic boiler.

Figure 2 is a sectional view taken on the vertical plane indicated by the line 22 of Figure 1, and

Figure 3 is a sectional view taken on the horizontal plane indicated by the line 33 of Figure 1.

Referring in detail to the drawing, 1 designates a domestic boiler of well-known construction, and 2 the water supply tube which extends vertically through the bottom 3 of the boiler.

The tube 2 is closed at its upper and lower ends, and is provided between its ends, and preferably above its horizontal or transverse center, with external screw threads 4 which engage the internal screw threaded spud 5 on the bottom 3 of the boiler 1 to secure the tube in place. The upper end or that portion of the tube 2 that is located above the screw threads 4, extends above the bottom 3 the tube 2, and the water is delivered to the 1931. Serial 1 10. 539,611.

of the boiler 1, and is provided'with annular series of discharge ports 6, the Ports being located above the bottom 3 of the boiler 1, and the ports or" the respective series being arranged in staggered relation. That portion of the tube 2 that is located below the screw threads 4:, is of polygonal formation in transverse section to provide wrench engaging faces '4" and thus enable the tube to be applied to a. boiler through the medium of a wrench. The tube 2 is provided at its lower end with radial spuds 8, 9 and 10 which are internally screw threaded to provide a tap for a water supply pipe 11, a tap for a drawoil' faucet, not shown, and a tap for gas heater coil or water back connection, not shown. Any one of these spuds that is not used may be closed by a plug, not shown.

In practice, the pipe 11 delivers water to boiler 1 by the tube. The water flows from the discharge ports 6 of the tube 2 in the form of fine streams. The streams of water issue horizontally from the tube 2 at points. above the bottom 3 of the boiler 1, and due thereto rust and foreign matter in the water will be continually stirred up and prevented from settling in the bottom of the boiler.

As the tube 2 delivers the water to the bot tom of the boiler 1, the spuds 12 on the top of the standard domestic boiler, of which one is now used as a cold water inlet and the other as a hot water outlet, may both be used as hot water outlets. The water inlet tube now used in the standard domestic boiler, and extending from one of the spuds 12 to a point short of the bottom of the boiler. rust-s out and causes cold water to mix with the hot water at the top of the boiler, the use of such tube being rendered unnecessary by my bottom supply tube which renders it impossible for the cold water to mix with the hot water at the top of the boiler. As standard domestic boilers are provided with bottom spuds, my. bottom supply tube may be connected to a boiler of this type in stock or in the home. To adapt such a boiler for the application thereto of my bottom supply tub-e. it is only necessary to remove the presentinlet tube, for the boiler. If the spud at the top of the boiler to which the Water inlet tube was connected, is not to be used, such spud Will be closed by a plug.

From the foregoing description, taken in connection With the accompanying drawing, it should be apparent that the tube provides not only for the deliveryof the cold Water to the bottom of the boiler in such a manner as to prevent rust and foreign matter from accumulating on the bottom of the boiler, but also provides for the connection to the bottom of the boiler of a draw-off faucet and a gas heater coil or fire back, that the bottom supply tube is simple, durable and inexpensive, and that it may be readily connected to a boilerv now in use.

\Vhile I have describedtheprinciple of the invention, together With-the structure which I now consider the preferred embodiment thereof, it isto. be understoodthat the structure-shownis merely illustrative and that suchvchanges may be made, When desired, as fall Within the scope of the invention as claimed.

What:is claimed is;--

A. bottom; supply tube for domestic boilers comprisinga tubular member closed at the upper end and provided With a plurality of relatively small radially arranged discharge ports near' said upper end, a nut member formed with the tubular member beloW- the ports, exterior threads carried by' the tubular member betweenthe nut member and the ports, anda2 T-shaped. CODIlBCtlOIlT carried by the lower. end ofthe-tubular member and affordingv at least two inlets to said tubular member.

In testimony whereof I hereuntoafiixmy signature.

GEQRGE" V SILTZ." 

